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Computer Text Book > Chapt 6 > Flashcards

Chapt 6 Flashcards

1
Q

Which of the following is equal to 1024 bytes?

GB
Bit
KB
MB

A

Kb

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2
Q

To calculate the number of binary MB in a decimal number, which of the following formulas should be used?

Multiply the value by 1024.
Divide the value by 1,048,576.
Multiply the value by 1,048,576.
Divide the value by 1,000,000.

A

Divide the value by 1,048,576.

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3
Q

What is the approximate size in binary GB of a DVD+R disc that holds about 4.7 billion bytes?

4.7
4.37
3.48
8.34

A

4.37

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4
Q

Choose the largest value from the following list.

1,000,000,000 bytes
950MB
0.78GB
1500KB

A

950MB

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5
Q

Choose the largest unit of measure from the following list.

MB
TB
GB
PB

A

PB

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6
Q

Which of the following statements is incorrect?

1024KB = 1MB
1024MB = 1PB
1024GB = 1TB
1TB = 1024MB×1024MB

A

1024MB = 1PB

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7
Q

Clock speed measures which of the following?

Data transfer rate
Memory throughput
Device throughput
Processor cycles per second

A

Processor cycles per second

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8
Q

Which of the following is the slowest clock rate?

4770MHz
4GHz
2500MHz
2.7GHz

A

2500MHz

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9
Q

Which of the following is a correct statement about clock speed and CPU performance?

Any processor with a faster clock speed than another performs tasks more quickly.

Internal design has no effect on CPU performance.

A processor’s clock speed is one of the factors determining CPU performance.

A processor’s clock speed is controlled by the real-time clock chip on the motherboard.

A

A processor’s clock speed is one of the factors determining CPU performance.

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10
Q

You are evaluating two laptop computers. One of them has a faster processor than the other. Which of the following is a correct statement about these computers?

The computer with the faster processor will perform all tasks faster.
The processor has no effect on system performance.
The computer with the faster processor has more RAM than the other one.
There is not enough information to determine which computer will perform needed tasks faster.

A

There is not enough information to determine which computer will perform needed tasks faster.

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11
Q

You are creating a digital music (MP3) file from a music track on one of your CDs. Which of the following settings is best if you want to create a high-
quality file?

64Kbps compression.
320Kbps compression.
32-bit compression.
Any setting will work because quality is based on the original track, not the MP3 compression settings.

A

320Kbps compression.

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12
Q

You are examining a computer you want to buy. It needs to have at least two USB ports with a transfer rate of 5Gbps. It has two USB 2.0 ports, two USB 3.0 ports, and one USB 3.1 Gen 2 port. Does this computer meet the requirements? (Choose the best answer.)

Yes, all five ports are fast enough.
No, none of these ports is fast enough.
No, only the USB 3.1 Gen 2 port is fast enough.
Yes, there are three ports that are fast enough.

A

Yes, there are three ports that are fast enough.

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13
Q

You are comparing two photos—one JPG and one a CR2 RAW file. The pictures are the same resolution. Which of the following is a correct statement about these photos?

The JPG photo uses more disk space than the CR2 file.
The CR2 file uses more disk space than the JPG file.
Both files use the same amount of disk space because they are the same resolution.
The CR2 file was shot with a smartphone.

A

The CR2 file uses more disk space than the JPG file.

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14
Q

You need to send a 15MB text and image document created in Microsoft Word to a client. Their email service can only accept 10MB files. Which of the following will create a file the other user can review most easily?

Save the file in Rich Text Format and find out if the client can open the file.
Save the file as a series of JPG screen captures.
Save the file as a high-quality PDF.
Edit the file into two or more smaller files and email each separately.

A

Save the file as a high-quality PDF.

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15
Q

Which of the following accurately lists measurements in order from largest to smallest?

Megabyte, kilobyte, petabyte
Petabyte, gigabyte, terabyte
Petabyte, gigabyte, megabyte
Gigabyte, kilobyte, megabyte

A

Petabyte, gigabyte, megabyte

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16
Q

Which of the following accurately lists connection speeds in order from fastest to slowest?

Fast Ethernet, Gigabit Ethernet, USB 2.0
FireWire 1394a, Fast Ethernet, USB 2.0
USB 3.1 Gen 1, Fast Ethernet, Gigabit Ethernet
USB 3.0, Gigabit Ethernet, FireWire 1394b

A

USB 3.0, Gigabit Ethernet, FireWire 1394b

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17
Q

A processor clock cycle consists of which of the following?

Rising and falling edges of pulse
Space between each pulse
Pulse and rest
Two pulses and space between the pulses

A

Pulse and rest

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18
Q

Select the correct pairing of binary measurements and size in bytes.

1KB = 1,048,576
1MB = 1,048,576
1GB = 1,000,000.000
1MB = 1,000,000

A

1MB = 1,048,576

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19
Q

Which of the following is a correct statement about processor type and memory size?

A 32-bit processor can manage up to 32MB of RAM.
A 64-bit processor can manage up to 232 of RAM.
A 32-bit processor can manage up to 4GB of RAM.
A 64-bit processor can manage up to 64GB of RAM.

A

A 32-bit processor can manage up to 4GB of RAM

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20
Q

You are using Windows to determine the amount of space left on a hard disk. Which of the following statements is accurate about how Windows displays the capacity?

You must calculate the binary MB or GB capacity manually from the bytes listed.
Windows reports only binary MB or GB capacity; you must calculate the bytes manually.
Windows uses a pie chart to display capacity.
Windows displays binary MB or GB and bytes.

A

Windows displays binary MB or GB and bytes.

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21
Q

A

A

B

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22
Q

Storage units use two number systems: ________. &. ___________

A

Decimal powers of 10 and decimal powers of 2

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23
Q

The smallest storage unit is

A

Bit

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24
Q

A bit can take what values?

A

A bit is the 0 or 1 in binary (base 2) numbering

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25
Q

A nibble =

A

nibble is equal to four bits.

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26
Q

A 32-bit processor can process information in _____ bit-wide elements

A

32

27
Q

A 32-bit processor can also access memory addresses up to

A

2^32

28
Q

Max ram for a 32 bit processor ?

A

2^32 = (4,294,967,296 or 4GB)

29
Q

A 64-bit processor can process information in ___ bit-wide elements

A

64

30
Q

A 64-bit processor can also access memory addresses up to ?

A

2^64

31
Q

Max RAM for a 64 bit processor

A

2^64 = (18,446,744,073,709,600,000, or 18 ZB [zettabytes]).

32
Q

1 Byte = ? Bits

A

A byte is equal to eight bits.

33
Q

A single character in a plaintext file requires _________ to store it.

A

1 byte

34
Q

1 KB =

A

Depending on the device, a kilobyte (KB) is either 1024 bytes (decimal, power of two) or 1000 bytes (decimal, power of ten).

35
Q

MB =

A

Depending on the device, a megabyte (MB) is either
1,048,576 bytes (1024 kilobytes using powers of two) or
1,000,000 (one million) bytes (decimal, powers of ten).

36
Q

RAM (system memory or cache memory) is expressed using the ________ numbering system

A

powers-of-two or base 2

37
Q

storage drives and media is expressed using _______ measurements.

A

Decimal or base 10

38
Q

166,363,136 bytes in base 10 (decimal) = ________ in base 2

A

To calculate the binary MB value from a value in millions, divide the capacity in bytes by 1,048,576.

158.656

39
Q

GB = ?MB

A

GB = Depending on the device, a gigabyte (GB) is either 1,073,741,824 (1024 megabytes in powers of two) or 1,000,000,000 bytes (decimal, powers of ten)

40
Q

memory is always measured using?

A

binary

41
Q

TB = ?

A

TB

A terabyte (TB) is either 1,099,511,627,776 bytes (1024 gigabytes using powers of two) or 1,000,000,000,000 bytes (powers of ten).

42
Q

Storage vendors generally measure their drives using base ?

A

10

43
Q

operating systems measure their devices using base?

A

2

44
Q

PB = ?

A

Depending on the device, a petabyte (PB) is either
1,125,899,906,842,620 (1024 terabytes using powers of two) or
1,000,000,000,000,000 bytes (decimal, powers of ten).

45
Q

Petabyte-sized drive arrays are used in _______ storage and _______ systems.

A

Cloud & backup

46
Q

Digital photo taken with smartphone is what format usually?

A

Jpg

47
Q

RAW (uncompressed) image file taken with Canon digital SLR (DSLR) camera

A

CR2

48
Q

Throughput measures?

A

Throughput units are used to measure the speed at which data is transferred between endpoints, such as from the Internet to a broadband modem, or from a hard drive to a computer.

49
Q

Throughput is measured in ?

A

Throughput units use powers-of-ten (decimal) numbering systems.
BITS per second (bps), not bytes (B)

50
Q

Tbps

A

One terabit per second

51
Q

Processing Speed is also known as ?

A

Clock speed

52
Q

Processing speed/clock speed measures the number of?

A

cycles a processor can perform per second.

53
Q

The processing speed is controlled by a?

A

crystal oscillator clock chip on the motherboard.

54
Q

A clock cycle is the combination of a?

A

pulse and rest

55
Q

One megahertz (MHz) equals? _____ cycles per second

A

1 million cycles per second

56
Q

Speed of usb 1.1

A

12 Mbps

57
Q

Speed of usb 2.0

A

480Mbps

58
Q

Speed of usb 3.0/3.1 Gen 1

A

5 Gbps

59
Q

Speed of usb 3.1 Gen 2

A

10 Gbps

60
Q

Speed of FireWire IEEE 1394b

A

800 Mbps

61
Q

Speed of SATA revision 1

A

1.5 Gbps

62
Q

Speed of SATA revision 2

A

3 Gbps

63
Q

Speed of SATA1 revision 3

A

6 Gbps

64
Q

Fast Ethernet = _______ per second

A

100 Mbps

Computer Text Book (14 decks)

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